Answer: Docker push command

The `docker push` command is used to push an image or a repository to a registry, such as Container Registry. You can specify the hostname to indicate where the image will be stored. For multi-region storage, use these prefixes: - `gcr.io`: Hosts images in data centers in the United States, with possible future location changes. - `us.gcr.io`: Hosts images in data centers in the United States, in a separate storage bucket from `gcr.io`. - `eu.gcr.io`: Hosts images in the European Union. - `asia.gcr.io`: Hosts images in data centers in Asia. The Docker credential helper is the simplest method to configure Docker for direct authentication with Container Registry. After configuration, you can use the `docker` command to tag, push, and pull images. Alternatively, client libraries or direct interaction with the Docker API can be used for managing container images.

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